“Reactor Rupture”: TEPCO says “there must be a large leak” in No. 1 reactor — Reveals No. 2 and 3 may have similar ruptures

“There must be a large leak,” Tokyo Electric Power official Junichi Matsumoto said to reporters on Thursday. “The fuel pellets likely melted and fell, and in the process may have damaged … the pressure vessel itself and created a hole,” he said. […]

Similar ruptures might have developed in the plant’s No. 2 and No. 3 reactors if their nuclear material had heated to the point of losing its structure, Reuters quoted Matsumoto as saying. […]